On the list of items in a library, is there a way to add a column with our own text?

My goal is to add a tag, text, emoji or symbol column that tells me at a glance in the list the working status of each paper. For example a green circle for a paper I've already read and annotated, a red circle for a paper I haven't read yet, and a yellow one for a paper I'm currently reading.

I've messed around with the settings as much as I could but it appears I can only choose from attributes that are directly linked to the metadata of the papers.